To expand the expression (2x−5)(x+1), we will utilize the distributive property, which involves multiplying each term in the first bracket by each term in the second bracket. This method is commonly known as the FOIL method, an acronym that stands for First, Outer, Inner, and Last.
Let’s break down the expansion step by step:
First: Multiply the first terms from each bracket:
2x×x=2x2Outer: Multiply the outer terms from the brackets:
2x×1=2xInner: Multiply the inner terms from the brackets:
−5×x=−5xLast: Multiply the last terms from each bracket:
−5×1=−5Now, we combine all these products together:
2x2+2x−5x−5Next, we simplify the expression by combining like terms. The like terms in this case are 2x and −5x:
2x2+2x−5x−5=2x2−3x−5Thus, the expanded form of (2x−5)(x+1) is
2x^2 - 3x - 5 $$.![]() 100% | ![]() Global | ![]() 97% | |
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Professional Tutors |
All of our elite tutors are full-time professionals, with at least five years of tuition experience and over 5000 accrued teaching hours in their subject. |
![]() Global |
International Tuition |
Based in Cambridge, with operations spanning the globe, we can provide our services to support your family anywhere. |
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Independent School Entrance Success |
Our families consistently gain offers from at least one of their target schools, including Eton, Harrow, Wellington and Wycombe Abbey. |
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